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01 Tahoe fluctuating oil pressure and sluggish engine (only some times)
So after working on this issue for quite some time, I was able to finally figure it out. I would not wish this issue on anyone. The issue was the EGR. I swapped it out and the truck runs perfectly.- ffspread
- Post #8
- Forum: Engine & Drivetrain
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01 Tahoe fluctuating oil pressure and sluggish engine (only some times)
UPDATE JULY 29. Please help, i'm going nuts with this! HELP! Ok, So I'm still working on this problem and i'm going insane. Problem - 2100 RPM for more than 2 minutes causes the flashing CEL with P0300 error doesn't matter if it's gentle accel or WOT; if I WOT on the highway I get...- ffspread
- Post #7
- Forum: Engine & Drivetrain
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01 Tahoe fluctuating oil pressure and sluggish engine (only some times)
I had brought the hoe into GM and they had run the scanner on it and said that the fuel trim was all over the place due to the faulty MAF. This morning when I fired it up and went to head to work, I had very limited power for about the first 5 minutes, after the truck warmed up it had it's full...- ffspread
- Post #6
- Forum: Engine & Drivetrain
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01 Tahoe fluctuating oil pressure and sluggish engine (only some times)
Update again... Still looking for suggestions. Brought the Hoe into GM and they ran 1.5 hours of diagnostics. Found all ignition components were good, but my MAF readings were all out. I replaced the MAF and hooked up the camper and headed out. Ran great on the way out with no issues...- ffspread
- Post #3
- Forum: Engine & Drivetrain
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01 Tahoe fluctuating oil pressure and sluggish engine (only some times)
Update Pretty significant update... Went under the truck last night and did the fix for the 0446, and reset the codes. Took the truck for a ride on the highway and truck seemed to be running fine at 60 with the OD enabled and running around 1650RPM. Enabled the tow mode and the rpm went up...- ffspread
- Post #2
- Forum: Engine & Drivetrain
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01 Tahoe fluctuating oil pressure and sluggish engine (only some times)
01 Tahoe fluctuating oil pressure and sluggish engine (FIXED) UPDATED TODAY JULY 29, 2013 I just bought a 01 Tahoe 5.3l with 160000 miles. When I bought it, it had the P0446 CEL on so I know what to do to fix that when I get a chance, but yesterday I was towing my trailer (24ft 6000lbs) at...- ffspread
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- Replies: 7
- Forum: Engine & Drivetrain
